I'm assisting someone whose Imail server (9.23 running on 2003) has been
hacked by a spammer.  I don't think it's a relaying issue since the server
is behind a Barracuda spam firewall that filters incoming email and rejects
anything not addressed to the domain's users - the Barracuda logs show
nothing. The server is not running on port 25 - the Barracuda is forwarding
all email on a different port.  If you go into User Manager you can see
where an user account had been modified with a bogus Full Name and Return
Address.  The actual spam content was in the signature file and the hacked
user account was used to send the spam email.

The server is on a DMZ, with incoming ports tightly restricted - I've been
searching the firewall and SMTP logs but can't figure out how the spammer is
gaining access to Imail.  Where do I need to be looking?  Any help would be
greatly appreciated.

To Unsubscribe: http://imailserver.com/support/discussion_list/
List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
Knowledge Base/FAQ: http://imailserver.com/support/kb.html

Reply via email to